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Trojan.StartPage.38227

Added to the Dr.Web virus database: 2011-08-06

Virus description added: 2011-08-06

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Terminal Server\Install\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows System Devices Manager' = '%WINDIR%\csrss.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows System Devices Manager' = '%WINDIR%\csrss.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows System Devices Manager' = '%WINDIR%\csrss.exe'

Malicious functions:

To bypass firewall, removes or modifies the following registry keys:

[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '%WINDIR%\csrss.exe:*:Enabled:Windows System Devices Manager'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:Windows System Devices Manager'

Creates and executes the following:

%WINDIR%\csrss.exe

Executes the following:

<SYSTEM32>\sc.exe config MsMpSvc start= disabled
<SYSTEM32>\sc.exe config wuauserv start= disabled
<SYSTEM32>\net1.exe stop MsMpSvc
<SYSTEM32>\net1.exe stop wuauserv
%WINDIR%\explorer.exe http://br#####sers.myspace.com/Browse/Browse.aspx
<SYSTEM32>\netsh.exe firewall add allowedprogram 1.exe 1 ENABLE
<SYSTEM32>\net.exe stop MsMpSvc
<SYSTEM32>\net.exe stop wuauserv

Searches for windows to

detect programs and games:

ClassName: 'MSNHiddenWindowClass' WindowName: ''
ClassName: '_Oscar_StatusNotify' WindowName: ''

Sets a new unauthorized home page for Windows Internet Explorer.

Modifies file system :

Creates the following files:

%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\Browse[1].aspx
%WINDIR%\csrss.exe

Sets the 'hidden' attribute to the following files:

%WINDIR%\csrss.exe
<Full path to virus>

Network activity:

Connects to:

'br#####sers.myspace.com':80
'85.##0.147.53':1234
'localhost':1039
'24#.#56.38.242':1234

TCP:

HTTP GET requests:

br#####sers.myspace.com/Browse/Browse.aspx

UDP:

DNS ASK ma#.###gosbakugan.net
DNS ASK er####rlounge.de
DNS ASK ma#.#osbank.com
DNS ASK ol#.###gjuyt2tugas.com
DNS ASK xx#.#agdcom.de
DNS ASK sc####service.com
DNS ASK ol#.###temofadown.com
DNS ASK ma#.#time.com
DNS ASK sc####idyscrubs.com
DNS ASK al#####shistory.info
DNS ASK ma#.#guia.cl
DNS ASK tr###dvisor.com
DNS ASK he####ger.x-y.net
DNS ASK pr#.##ndmines.org
DNS ASK ma#.##ivie.ac.at
DNS ASK ma#.##lamontada.com
DNS ASK be##.neogen.ro
DNS ASK mi#.###naturistclub.com
DNS ASK ep#.##nmablog.jp
DNS ASK mi#.###ce-erotske.in.rs
DNS ASK op#.####andathletics.com
DNS ASK so####mpton.ac.uk
DNS ASK jb.#sm.org
DNS ASK op#.##nin.irf.se
DNS ASK uk#.##nkedin.com
DNS ASK ma#.#730ip.com
DNS ASK tr####ationale.org
DNS ASK jo######faccountancy.com
DNS ASK in####highered.com
DNS ASK www.sh###man.com
DNS ASK st###ntime.info
DNS ASK al#.##kibili.com
DNS ASK gg.###yontime.info
DNS ASK as###.ic.ac.uk
DNS ASK ve###tek.com
DNS ASK br#####sers.myspace.com
DNS ASK pr#####articles.info
DNS ASK at#.##coctelera.net
DNS ASK de#####mccloskey.org
DNS ASK mc##.#vengine.com
DNS ASK un###fed.com
DNS ASK ma#.##chivum.info
DNS ASK mi####astpost.org
DNS ASK jo####ls.lww.com
DNS ASK su#####uni-sw.eesp.ch
DNS ASK qu#.51.com
DNS ASK we#####trafficspy.com
DNS ASK bl####historys.info
DNS ASK xx#.##opklatka.pl
DNS ASK sh###tyle.com

Miscellaneous:

Searches for the following windows:

ClassName: 'ComboBoxEx32' WindowName: ''
ClassName: 'ComboBox' WindowName: ''
ClassName: 'msctls_statusbar32' WindowName: ''
ClassName: 'ReBarWindow32' WindowName: ''
ClassName: 'Address Band Root' WindowName: ''
ClassName: 'TskMultiChatForm.UnicodeClass' WindowName: ''
ClassName: 'Message Session' WindowName: ''
ClassName: '__oxFrame.class__' WindowName: ''
ClassName: 'MS_AutodialMonitor' WindowName: ''
ClassName: 'MS_WebcheckMonitor' WindowName: ''
ClassName: 'HTMLSOURCEVIEW' WindowName: ''
ClassName: 'IEFrame' WindowName: ''
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: 'Indicator' WindowName: ''
ClassName: '' WindowName: ''
ClassName: 'Internet Explorer_Server' WindowName: ''
ClassName: 'WorkerW' WindowName: ''
ClassName: 'Shell DocObject View' WindowName: ''
ClassName: 'Frame Tab' WindowName: ''
ClassName: 'TabWindowClass' WindowName: ''

Curing recommendations

If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.

Download Dr.Web

Download by serial number

Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

Download Dr.Web

Download by serial number

Download on App Store

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

Download Dr.Web

Download by serial number

If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
- Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
- Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
- Switch off your device and turn it on as normal.

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